Questions tagged [view-hierarchy]
A view hierarchy defines the relationships of the views to one another.
view-hierarchy
52
questions
49
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0
answers
7k
views
SwiftUI UITableView was told to layout its visible cells and other contents without in view hierarchy
I have a list in a view (lets call it view A) where I push a view B via NavigationLink from view A and manipulate the CurrentSubjectValue to the initial view A. The moment the data is added and the ...
- 1,438
44
votes
5
answers
47k
views
ConstraintLayout views in top left corner
Every time I create views like Button and TextView in ConstraintLayout, they all get stuck at the top corner instead of where I placed them.
I tried to create new activities and change the emulator, ...
- 441
43
votes
0
answers
5k
views
Traversing the View Hierarchy on an iPhone or iPad [duplicate]
Here is a helpful routine you can use in an iOS app to traverse the view hierarchy when you want to know what's being created and where it's going.
This routine dumps the view hierarchy to NSLog() ...
- 1,796
15
votes
6
answers
36k
views
First view above / overlapping second in LinearLayout
Is it possible to show the first view in a LinearLayout overlapping the second?
I would like to layout my views like so:
<LinearLayout
android:layout_width="wrap_content"
android:...
- 11k
7
votes
1
answer
6k
views
Child view controller should have parent view controller but actual parent is (UIViewControllerHierarchyInconsistency)
I have an app which has UITabbarController as the initial window(after logging-in i set it as rootViewController)
This tabbarController has 4 different tabs in it which are all UIViewControllers ...
- 79
6
votes
4
answers
3k
views
Why does minHeight attribute not work in WebView Android?
This question has already been asked here, but it has no solution.
I have a WebView. I want to set minimum height to the WebView using minHeight attribute, but it doesn't work. The same attribute ...
- 7,238
6
votes
1
answer
2k
views
Error grabbing View Hierarchy, XCode 8.2.1: "No plist data for fetching view hierarchy"
While trying to debug my view hierarchy, I get the following error:
Error: Unable to capture view hierarchy.
Details: No plist data for fetching view hierarchy: error evaluating expression “(id)[(...
- 15.9k
6
votes
1
answer
3k
views
android get view hierarchy for all windows in activity
I am making SKD for Automation. So my needs are slightly different that normal app development.
Requirement: Get ViewHierarchy of current activity.
Problem: I get it correct when Spinner is not open. ...
- 2,066
4
votes
2
answers
1k
views
View is in the last position of parent, but still being blocked
What I want to do
In a BottomSheetDialogFragment, I want to inflate a view that always stick at the bottom of the screen, no matter what state (collapsed / expanded) the BottomSheetBehavior is in.
...
- 5,259
4
votes
2
answers
1k
views
SwiftUI - How to change hierarchical position of View?
Here's a basic example of what doesn't work:
import SwiftUI
struct Test : View {
@State var swapped = false
var body: some View {
if swapped { Color.green }
Color.blue....
- 4,106
3
votes
2
answers
2k
views
onTouch() not called for parent layout
I have a layout like this:
LinearLayout
RelativeLayout(id = test)
FrameLayout (From a LIB. id = lib)
I tried to add onTouchListener() to test but it doesn't work.
I tried:
@OnTouch(R....
- 2,414
3
votes
1
answer
1k
views
Inspecting an Android Activity's own View hierarchy at runtime
Is it possible for an Activity to get to and inspect, ideally even modify, the entire View hierarchy for itself, without knowing IDs of all the views or special access such as instrumentation mode or ...
- 4,457
3
votes
1
answer
427
views
viewWillAppear not called apparently due to my view hierarchy
This appears to be a well documented problem, yet the solutions online have not worked.
Here's just a sample list of posts that failed to provide me with a working answer:
ViewWillAppear not ...
- 3,085
3
votes
0
answers
661
views
FrameLayout not respecting draw order
I've this layout hierarchy:
<FrameLayout>
<ScrollView>...</ScrollView>
<LinearLayout>...</LinearLayout>
<LinearLayout>...</LinearLayout>
</...
- 11.8k
2
votes
1
answer
2k
views
SwiftUI - Responding to taps in parent View
TL;DR:
I want to trigger an action when (parent) state changes. This seems difficult in a declarative context.
Remarks
The challenge here is that I am not trying to make a property of one view ...
- 3,613
2
votes
1
answer
3k
views
Android: On touch event not received by parent view
I have a relative layout R1 as a custom view for an expandable list view.
Now inside R1, i have one Image view I1 and another relative layout R2, both being siblings.
I have set on click listeners ...
- 7,544
2
votes
1
answer
217
views
How to find where UIView has been created in code - swift - Programmatically
If I see a UIView in Debug View Hierarchy and I don't know where it comes from,
Is there a way to see where it has been programmatically created in code?
This question describes and explains the ...
- 938
2
votes
3
answers
632
views
What is the best practice: Multiple UIViews or Multiple UIViewControllers [closed]
I plan to develop an check list app that consists of multiple pages. Each page is going to display a list of simple Yes/No questions and a "Next" button at the bottom of the page.
In terms of the app ...
- 3,398
2
votes
1
answer
855
views
Set autolayout constraints programmatically
I can't figure out how to fix this: I want to create a match game, where the size of the cards depends on the device.
I thought I would create a contentView which I pinned to top and bottom of the ...
- 73
2
votes
2
answers
1k
views
android view hierarchy does not capture the custom view widget tree structure
I am trying to use DDMS hierarchy viewer to capture the virtual view hierarchy (tree structure of the custom view widget). This custom view widget is from android's sample code ApiDemos which has the ...
- 29
1
vote
2
answers
4k
views
How to get selected child in GridLayout similar to GridView
I want to achieve the following abilities:
Select only one child View inside a GridLayout each time by long clicking it.
A click on the GridLayout or any ancestor parent in the visual hierarchy will ...
- 1,361
1
vote
2
answers
268
views
android consolidating views in include statements, improve performance?
I am optimizing my android layouts. One suggestion I got was to re-use layouts in include statements. Although I understand the utility of this, kind of like object orientated views, but does it ...
- 43.4k
1
vote
1
answer
546
views
SwiftUI ZStack and Xcode 3D View Hierarchy
I'm learning SwiftUI. When I have a ZStack say
ZStack {
Image(systemName: "globe")
.imageScale(.large)
.foregroundColor(.accentColor)
Text("Hello, world!")
}
...
- 65
1
vote
1
answer
592
views
Customizing UINavigationBar not working because of weird UINavigationBar view hierarchy
My app has many ViewControllers that are pushed on navigation stack.
I have configured UINavigationBar appearance globally in AppDelegate as below.
let appearance = UINavigationBar.appearance()
...
- 948
1
vote
1
answer
269
views
Blank screen first time launching app xcode
I am having a little issue with logging into an app the first time with a blank screen and I am getting the warning "Attempt to present on whose view is not in the window hierarchy!" After I close ...
- 1,249
1
vote
1
answer
83
views
Root VC being deallocated by a second modal
Recently I have developed a custom modal animation using the UIViewControllerTransitioningDelegate where the calling view controller should be visible after the transition, i.e. its modal is over ...
- 191
1
vote
0
answers
411
views
Xcode debug cannot capture view hierarchy on macbook M1
In one project, 'capture view hierarchy' and 'pause program execution' buttons are simply not working. 1 out of 20 times it's showing blank screen saying Unable to capture view hierarchy, but other ...
- 87
1
vote
0
answers
320
views
Simultaneous Gestures not working for a ZoomableScrollView in SwiftUI
Using Swift5.3.2, iOS14.4.1, Xcode12.4,
I am trying to use the .simultaneousGesture modifier in SwiftUI.
As far as I understood, this modifier should make sure that gestures (such as tap, longpress, ...
- 6,764
1
vote
0
answers
858
views
Access to UITransitionView's From UIWindow
In my application I have a UINavigationController, After authentication I run perform segue(Push replace) for navigating to UINavigationController, when app goes to background I present Authentication ...
- 1,748
1
vote
0
answers
498
views
Error obtaining UI hierarchy and Screen not available
I use Android Device Monitor to check my Android App view hierarchy.
Run the app in android studio's device simulator.
Open the Android Device Monitor.
Then choose my App and Dump View Hierarchy ...
- 27.8k
1
vote
0
answers
58
views
A view that can be moved and resized on android
I'm making an app that should allow users to dynamically put ImageViews into existence, move them where they please, resize them and mess around with the layer stacking of said views.
The layer ...
- 301
1
vote
0
answers
220
views
Android Fragments: restore programmatically added views
I have two fragments: fragmentA and fragmentB
In fragmentA, some views have been programmatically added
If from fragmentA I go to fragmentB and then I come back to fragmentA, all the ...
- 20.2k
1
vote
0
answers
709
views
StackOverflowError because of too deep view-hierarchy in Android
we get in the Play Store some crash reports of this kind:
java.lang.StackOverflowError
at android.graphics.Paint.getTextRunAdvances(Paint.java:1753)
at android.graphics.Paint.getTextRunAdvances(Paint....
- 43
0
votes
2
answers
2k
views
Is there any free library that I can use to make tree view structure in react JS [closed]
I want to make a tree view structure in React JS. I already use the package "goJS" but I am facing some issues in it. As the price of this package is very high so I can't purchase it.
The ...
0
votes
1
answer
605
views
View Hierarchy not showing on XCode 13
I recently updated Xcode to Xcode 13.
I opened an old project and tried to edit a xib file with interface builder.
I can't figure out how to show the view hierarchy that used to be on the left on IB.
...
0
votes
3
answers
2k
views
VideoPlayer in SwiftUI stops playing when parent-View updates
Using Swift5.3.2, iOS14.4.1, Xcode 12.4,
I am successfully running a VideoPlayer in SwiftUI.
I am calling the Player view with this code: VideoPlayer(player: AVPlayer(url: url)).
The problem is that ...
- 6,764
0
votes
2
answers
657
views
android:layout_alignTop does not work similar to android:layout_alignBottom
I try to create a semi-transparent red View and a TextView inside RelativeLayout, which the height of View follows the height of TextView, it works as expected when the TextView is above the semi-...
- 7,777
0
votes
1
answer
45
views
Control doesnt respond to mouse actions because it's on bottom of view hierarchy
I have a ContentControl with following DataTemplate
xmlns:oxy="clr-namespace:OxyPlot.Wpf;assembly=OxyPlot.Wpf"
....
<DataTemplate DataType="{x:Type y:DataGraph}">
<Grid>
...
- 314
0
votes
0
answers
412
views
TabView disconnects when rotating to Landscape due to SwiftUI's re-render of parent-Views
Using Swift5.3.2, iOS14.4.1, XCode12.4,
As the following code shows, I am working with a quite complex TabView in Page-Mode in SwiftUI.
i.e. using iOS14's new possibility to show Pages:
.tabViewStyle(...
- 6,764
0
votes
1
answer
103
views
Warning: Attempt to present ViewController on ViewController whose view is not in the window hierarchy (w/ UIAlertController)
I'm building a chat app where there are two types of views to be modally presented over the chat screen: a UIAlertController for users to select media to send, and a popover if the current user wants ...
- 41
0
votes
3
answers
121
views
Component child selector with extended template
I want to create component with view hierarchy outside of Router and RouterModule
Example:
comp-parent.ts
@Component({
selector: 'comp-parent',
template: `
<p>parent works</p&...
- 141
0
votes
1
answer
165
views
NavigationController and View Hierarchy issue
I have 1 (rootViewController) view controller which is embedded in navigation controller. Then i pushed another view controller (secondViewController), which has search controller in title view. When ...
- 684
0
votes
0
answers
177
views
Presenting new view controller - View is not in the window hierarchy
I am receiving a warning: "Warning: Attempt to present on whose view is not in the window hierarchy!"
I think I have a logic problem related to the presentation of the new view controller via a ...
- 458
0
votes
0
answers
522
views
Xcode 9 Debug View Hierarchy extremely slow
Before Xcode 9, Debug View Hierarchy completely created a visual interactive representation of the UI in about two seconds. Now, in Xcode 9, it takes about 15 seconds.
Is there any setting to make it ...
- 34k
0
votes
1
answer
269
views
How to put layout between others layout in RelativeLayout?
I have a RelativeLayout. Inside it I have:
An ImageView 120x120 dp in the right.
3 other layouts in the left:
1st layout (called Top) has alignParentTop=true
2nd layout (called Bottom) has ...
- 2,614
0
votes
1
answer
197
views
How do I inspect the "Debug View Hierarchy" while iOS device is plugged?
I know that "Debug View Hierarchy" work on 32-bit Mac App Projects and it doesn't support every type of iOS Simulator. But I can use on some of iOS Simulator.
Right now, I'm using ...
- 1,409
0
votes
1
answer
178
views
Curtain revealing view
I am trying to achieve the following challenging effect:
I want to move the white "curtain" down in order to reveal the red box.
(Note: in the screenshots below the curtain is white and the background ...
- 884
0
votes
0
answers
113
views
Why does my textField disappear?
I do some practice with iPhone4S about UITextField on iOS 7.1.2.
Interface:
The interface of the first version is simple, which just has a custom UITextField named MyUITextField and a UIButtom ...
- 1
0
votes
1
answer
541
views
UIScrollView tap gesture not working
I have an application where I am creating and adding PrimaryViewController to a UIScrollView, when the user taps on a button on PrimaryViewController's view, I create and add a SecondViewController to ...
- 2,136
0
votes
2
answers
77
views
Detect a touch on a subview in a main controller
I have a main view controller class which contains a UIScrollView and a number of subviews like cards.
Each card is an object and it is covered with a UIButton. I want to detect a tap on the UIButton ...
- 139